Name changed as DP knows my username 
I really try to keep a relaxed head on my shoulders and try and not stress about things, so I can't work out whether this is ok, or whether I'm a walkover (my friend's words).
Last night, the guy I've been seeing for 7 months (will refer to him as DP for ease in this thread) text me and said shall we have a takeaway tomorrow night and a chilled night watching Netflix? I said yes. I asked whether it'd be ok to do some work on my laptop for my second job whilst we do that as I'm swamped and he replied jokingly, with a hint of seriousness saying, "It's never just a chilled night lol :)" So I made a conscious effort last night to do what I needed to do quick time so I had tonight with him.
We saw each other last night but really late, for like an hour, and then stayed overnight together. So it's not like I haven't seen him.
He's on a training course today so I dropped him there on my way to work this morning as it's difficult to park. I text this afternoon and asked if he needed picking up or was he getting the bus. He firstly replied and said, "That'd be amazing, sweet x" then replied about 30 mins late saying, "Babe, don't worry about picking me up, we're going to finish at 4 from this training course then we're having a few drinks."
I replied and said, ok, let me know what the plan is for later, have a nice time. He replied saying his battery was really low.
Fast forward a few hours to about 7.30, he text saying, "I've had two ciders and I'm tipsy!" So I replied saying, "Lol, bad times! Shall I hang on for takeaway or should I get something to eat hun?"
He replied saying, "Babe!!!" - this is his way of saying, oh shit! Then again saying, "Eat just in case I don't get over to you. Work have paid for us to all have a bite to eat together. Battery very low x" then Screen shot me a picture of his battery on 1%.
My friend is saying I'm a walkover because he had plans with me tonight, and he hasn't discussed it to ask if it's ok with me to cancel or rearrange or whatever.
Am I being a walkover?
The way I'm looking at it is, he's on a training course - he's the only one from his branch there, the rest are people from other branches across the UK, it's been a good networking day for him and it's not like he sees these colleagues everyday at work. Work have offered to pay for a meal for them all. He barely goes out, like once or a month maybe, and even then it's not really going out, it's just going to his friend's house. And although he's not had a conversation per se (his phone battery didn't allow for it), he's let me know he's out and told me to eat without him and not just left me hanging. We saw each other last night. In fact, we've seen each other every night for the last week, so it's not like I'm starved of time with him.
My friend said I'm just used to being treated like shit by men and try too hard to be relaxed about things I should be annoyed about. Really?
What are your thoughts?